CN103350553A - Single-side reinforcing mica tape - Google Patents
Single-side reinforcing mica tape Download PDFInfo
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- CN103350553A CN103350553A CN2013102819022A CN201310281902A CN103350553A CN 103350553 A CN103350553 A CN 103350553A CN 2013102819022 A CN2013102819022 A CN 2013102819022A CN 201310281902 A CN201310281902 A CN 201310281902A CN 103350553 A CN103350553 A CN 103350553A
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Abstract
The invention relates to electrical insulating materials, in particular to a single-side reinforcing mica tape, which solves the technical problem that after the mica tape is subjected to impregnation, the air gap cannot be radically eliminated due to the poor impregnation performance of the conventional mica tape. A manufacturing method of the single-side reinforcing mica tape comprises the following steps: (a) the upper surface of alkali-free glass cloth is uniformly coated with a layer of adhesive with the accelerating agent after the surface treatment is performed to the alkali-free glass cloth via the coupling agent or the starchiness treating compound; (b) a piece of mica paper with the aramid fiber with the content of 3 percent to 7 percent covers the upper surface of the alkali-free glass cloth and is placed in a baking oven for baking; the baking is divided into four segments; (c) the alkali-free glass cloth with the mica paper covering the surface, which is subjected to baking, is rolled and pressed, so that the single-side reinforcing mica tape is obtained. The single-side reinforcing mica tape has the advantages of higher total gel content, high curing rate, thermal conductivity, thermal resistance, moisture resistance, excellent electrical performance, mechanical strength and excellent technology capability, and improves the operational reliability and service life of a high-voltage motor.
Description
Technical field
The present invention relates to the manufacturing of electrical insulating material, be specially a kind of single-side reinforced mica tape.
Background technology
Mica tape is the irreplaceable major insulation material that track traffic traction motor and big-and-middle-sized high-voltage generator, high-tension motor, metallurgy, mine and oil drilling, exploitation motor, wind-driven generator winding must be used.The motor winding is called the heart of motor by the insider, the motor winding is by the coil of making definite shape with the copper conductor of insulation, mica tape according to difference wrapped certain number of plies on coil of electric moter voltage consists of major insulation, the damage that has data to show that the motor winding is in operation is that the damage of its insulation causes more than 90%, therefore winding insulation then is most important most critical part in the heart, has determined reliability of operation and the service life of motor.Mica tape is that supporting material and mica paper are bonded together by adhesive, cuts into banded insulating materials again.In the main motor winding major insulation that consists of, have a large amount of air-gaps take the multi layer cloud master tape, the existence of air-gap will cause moisture absorption increase, the thermal conductivity of mica tape greatly to reduce, increase the temperature rise of motor, increased dielectric loss, make motor generation thermal breakdown, air-gap also will reduce shelf depreciation voltage, increase the premature breakdown that the shelf depreciation electric weight causes whole insulating barrier, having reduced the service life of motor, is the main contributor that electrical machine insulation is damaged.For the air-gap of eliminating in the insulating barrier will pass through vacuum pressure impregnation, with the air-gap in the insulated paint filling winding major insulation, form the insulating barrier of a densification, to improve thermal conductivity, heat resistance, moisture resistance, electric property and the mechanical strength of insulating barrier, therefore, mica tape is except should having good heat resistance, electric property, mechanical strength, and having higher total gel content and curing degree after the vacuum pressure impregnation also is the key performance of mica tape.And the mica tape that uses at present not only production cost is higher, and in the requirement that does not reach relevant criterion through the total gel content after the vacuum pressure impregnation and curing degree, air-gap can't be eliminated thoroughly, is greatly restricting reliability and the service life of motor.Therefore need a kind ofly when having good electric property and mechanical strength, have again good saturating machine and the motor impregnating resin has good compatibility, namely guaranteeing can have higher total gel content and curing degree after the vacuum pressure impregnation of motor winding insulation, thoroughly eliminate air-gap, realization is without air-gap insulation, improve reliability and the service life of motor, simultaneously the lower mica tape of production cost.
Summary of the invention
The present invention does not cause flooding the technical problem that rear air-gap can't thoroughly be eliminated for the present mica tape saturating machine of solution is good, and a kind of single-side reinforced mica tape is provided.
The present invention realizes by the following technical solutions: a kind of single-side reinforced mica tape, adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 3%～7% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 80 ℃～100 ℃, the time of curing is 1min～3 min, the second segment oven temperature is 100～140 ℃, the time of curing is 1min～2 min, the temperature of the 3rd section baking oven is 130～150 ℃, the time of curing is 1min～2 min, and the temperature of the 4th section baking oven is 130～140 ℃, and the time of curing is 1min～2 min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is the 0.2%-1.6% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and solutes content accounts for 28% ~ 32% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 1% ~ 3%; The quality of the adhesive after the interpolation promoter accounts for 4.8～11% of whole product quality; The mica paper indicated weight is 120 ± 11g/m
, thickness 0.04～0.11mm; The alkali-free glass cloth indicated weight is 20g/m
2～34g/m
2, thickness is 0.02 ~ 0.05mm.
Coupling agent and starchiness size can improve the wetability between fiberglass surfacing and the organic siliconresin, have improved the cohesive force between both interfaces, have improved simultaneously electric property and the mechanical performance of product; Contain a certain amount of aromatic polyamide fibre in the mica paper so that its structure is more fluffy, the more organic siliconresin of easier suction (impregnating resin) satisfies the requirement to total gel content; Aromatic polyamide fibre has humidification to the scale on mica paper top layer simultaneously, makes the mica flake on mica paper surface reduce the contingent displacement of mica flake when vacuum pressure impregnation, can improve the electrical strength of mica tape; Promoter being conducive to that adds prevents the loss of organic siliconresin (impregnating resin), to satisfy the requirement of the total gel content of product and curing degree.Adopt four sections methods are cured and per step is cured use temperature and time to make and guarantee that curing degree reaches the requirement of production standard, wherein first paragraph cures and can dry by the fire most organic solvent.Used material indicated weight and thickness have guaranteed mechanical strength and the electric property of mica tape.Described coupling agent or starchiness size carry out the surface-treated method for those skilled in the art's known technology to alkali-free glass cloth, are easy to realize.The mica paper that contains aromatic polyamide fibre is existing product, can buy from market; Described K83 is powder nitrile rubber powder, and described PPO is polyphenylene oxide, and BPO is diacyl peroxide, DCP is cumyl peroxide, is can buy on the market; When alkali-free glass cloth is carried out surface treatment, in above-mentioned coupling agent, choose any one kind of them and all can; Perhaps directly use the process starchiness size that buys on the market to carry out the surface-treated alkali-free glass cloth.
Single-side reinforced mica tape of the present invention floods rear curing time≤24h at winding, the main insulating layer compact conformation, and interlaminar bonding is tight.Make the inspection of motor sample according to ALSTOM company's T ROS915.240, breakdown voltage meets the ALSTOM standard, according to TROS 914.009 measurement of test method, and total gel content behind the dipping: 25～35%; According to TROS 914.007 measurement of test method, curing degree: 〉=75%.Total gel content and curing degree have all reached the standard of ALSTOM company, and mica tape saturating machine of the present invention, very good with the compatibility of impregnating resin is described.The class of insulation is 200 grades.Other all technicals of mica tape reach and surpass the relevant requirements of GB/T5019-2009 " take the insulating materials of mica as base ".
Single-side reinforced mica tape of the present invention has excellent electric property and mechanical strength, and is very soft, and good Wrapping technical is arranged, and hot strength is 〉=100N/10mm that electrical strength is the 12KV/ layer.Temperature classification is up to 200 grades, paint absorption capacity is large after the vacuum pressure impregnation, lacquer liquid runs off few in the solidification process, the air-gap that can effectively fill in the insulating barrier within a short period of time forms fine and close integrated insulating barrier, has very high total gel content and curing degree, thermal conductivity, heat resistance, moisture resistance, electric property and mechanical strength and good manufacturability.Operational reliability and the service life of high-voltage motor have been improved.Reached the specification requirement of offshore company and used technological requirement, can be applied on big-and-middle-sized high-voltage generator, high-tension motor, metallurgy, mine and oil drilling, exploitation motor, the wind-driven generator.
Description of drawings
The structural representation of Fig. 1 single-side reinforced mica tape of the present invention.
The 1-mica paper, 2-adhesive, 3-alkali-free glass cloth.
The specific embodiment
1 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 4% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 80 ℃, and the time of curing is 1min, and the second segment oven temperature is 110 ℃, and the time of curing is 1.4min, and the temperature of the 3rd section baking oven is 130 ℃, and the time of curing is 1.6min, and the temperature of the 4th section baking oven is 132 ℃, and the time of curing is 1.6min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 0.4% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 30% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 2.5%; The quality of the adhesive after the interpolation promoter accounts for 5.6% of whole product quality; The mica paper indicated weight is 111g/m
, thickness 0.06mm; The alkali-free glass cloth indicated weight is 24g/m
2, thickness is 0.02mm.
2 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 5% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 85 ℃, and the time of curing is 2min, and the second segment oven temperature is 130 ℃, and the time of curing is 1.2min, and the temperature of the 3rd section baking oven is 140 ℃, and the time of curing is 1.4min, and the temperature of the 4th section baking oven is 134 ℃, and the time of curing is 1.2min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 0.8% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 29% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 1.5%; The quality of the adhesive after the interpolation promoter accounts for 7.2% of whole product quality; The mica paper indicated weight is 117g/m
, thickness 0.08mm; The alkali-free glass cloth indicated weight is 30g/m
2, thickness is 0.04mm.
3 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 3% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 100 ℃, and the time of curing is 1.5min, and the second segment oven temperature is 100 ℃, and the time of curing is 1min, and the temperature of the 3rd section baking oven is 135 ℃, and the time of curing is 1.8min, and the temperature of the 4th section baking oven is 138 ℃, and the time of curing is 1.4min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 1.2% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 3.2% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 2%; The quality of the adhesive after the interpolation promoter accounts for 8.8% of whole product quality; The mica paper indicated weight is 125g/m
, thickness 0.07mm; The alkali-free glass cloth indicated weight is 2.6g/m
2, thickness is 0.05mm.
4 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 7% muscovite paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 90 ℃, and the time of curing is 2.5min, and the second segment oven temperature is 120 ℃, and the time of curing is 1.6min, and the temperature of the 3rd section baking oven is 150 ℃, and the time of curing is 2min, and the temperature of the 4th section baking oven is 136 ℃, and the time of curing is 1.8min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 1.4% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 31% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 3%; The quality of the adhesive after the interpolation promoter accounts for 6.4% of whole product quality; The mica paper indicated weight is 113g/m
, thickness 0.05mm; The alkali-free glass cloth indicated weight is 28g/m
2, thickness is 0.03mm.
5 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 6% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 95 ℃, and the time of curing is 3min, and the second segment oven temperature is 140 ℃, and the time of curing is 1.8min, and the temperature of the 3rd section baking oven is 145 ℃, and the time of curing is 1.2min, and the temperature of the 4th section baking oven is 140 ℃, and the time of curing is 2min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 1.0% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 28% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 1%; The quality of the adhesive after the interpolation promoter accounts for 10.4% of whole product quality; The mica paper indicated weight is 129g/m
, thickness 0.1mm; The alkali-free glass cloth indicated weight is 32g/m
2, thickness is 0.04mm.
6 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 5% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 100 ℃, and the time of curing is 2min, and the second segment oven temperature is 110 ℃, and the time of curing is 1.6min, and the temperature of the 3rd section baking oven is 135 ℃, and the time of curing is 1min, and the temperature of the 4th section baking oven is 130 ℃, and the time of curing is 1min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 0.6% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 31% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 2%; The quality of the adhesive after the interpolation promoter accounts for 9.6% of whole product quality; The mica paper indicated weight is 123g/m
, thickness 0.11mm; The alkali-free glass cloth indicated weight is 22g/m
2, thickness is 0.05mm.
7 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 5% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 100 ℃, and the time of curing is 2min, and the second segment oven temperature is 110 ℃, and the time of curing is 1.6min, and the temperature of the 3rd section baking oven is 135 ℃, and the time of curing is 1min, and the temperature of the 4th section baking oven is 130 ℃, and the time of curing is 1min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 1.6% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 31% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 2%; The quality of the adhesive after the interpolation promoter accounts for 11% of whole product quality; The mica paper indicated weight is 129g/m
, thickness 0.09mm; The alkali-free glass cloth indicated weight is 34g/m
2, thickness is 0.02mm.
8 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 5% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 100 ℃, and the time of curing is 2min, and the second segment oven temperature is 110 ℃, and the time of curing is 1.6min, and the temperature of the 3rd section baking oven is 135 ℃, and the time of curing is 1min, and the temperature of the 4th section baking oven is 130 ℃, and the time of curing is 1min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 0.2% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 31% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 2%; The quality of the adhesive after the interpolation promoter accounts for 8.0% of whole product quality; The mica paper indicated weight is 121g/m
, thickness 0.04mm; The alkali-free glass cloth indicated weight is 20g/m
2, thickness is 0.05mm.
9 one kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 6% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 95 ℃, and the time of curing is 3min, and the second segment oven temperature is 140 ℃, and the time of curing is 1.8min, and the temperature of the 3rd section baking oven is 145 ℃, and the time of curing is 1.2min, and the temperature of the 4th section baking oven is 140 ℃, and the time of curing is 2min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 1.0% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 28% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 1%; The quality of the adhesive after the interpolation promoter accounts for 4.8% of whole product quality; The mica paper indicated weight is 127g/m
, thickness 0.1mm; The alkali-free glass cloth indicated weight is 32g/m
2, thickness is 0.04mm.
10 1 kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 7% muscovite paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 90 ℃, and the time of curing is 2.5min, and the second segment oven temperature is 120 ℃, and the time of curing is 1.6min, and the temperature of the 3rd section baking oven is 150 ℃, and the time of curing is 2min, and the temperature of the 4th section baking oven is 136 ℃, and the time of curing is 1.8min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 1.4% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 31% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 3%; The quality of the adhesive after the interpolation promoter accounts for 6.4% of whole product quality; The mica paper indicated weight is 131g/m
, thickness 0.05mm; The alkali-free glass cloth indicated weight is 28g/m
2, thickness is 0.03mm.
11 1 kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 3% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 100 ℃, and the time of curing is 1.5min, and the second segment oven temperature is 100 ℃, and the time of curing is 1min, and the temperature of the 3rd section baking oven is 135 ℃, and the time of curing is 1.8min, and the temperature of the 4th section baking oven is 138 ℃, and the time of curing is 1.4min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 1.2% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 3.2% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 2.5%; The quality of the adhesive after the interpolation promoter accounts for 8.8% of whole product quality; The mica paper indicated weight is 115g/m
, thickness 0.07mm; The alkali-free glass cloth indicated weight is 2.6g/m
2, thickness is 0.05mm.
12 1 kinds of single-side reinforced mica tapes of embodiment adopt following steps to produce: (a) evenly to be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 3% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 100 ℃, and the time of curing is 1.5min, and the second segment oven temperature is 100 ℃, and the time of curing is 1min, and the temperature of the 3rd section baking oven is 135 ℃, and the time of curing is 1.8min, and the temperature of the 4th section baking oven is 138 ℃, and the time of curing is 1.4min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is 1.2% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and organic siliconresin content accounts for 3.2% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 1.5%; The quality of the adhesive after the interpolation promoter accounts for 8.8% of whole product quality; The mica paper indicated weight is 109g/m
, thickness 0.07mm; The alkali-free glass cloth indicated weight is 2.6g/m
2, thickness is 0.05mm.
The mica tape mica content that the present invention produces is high, and adhesive content is few, and permeability is strong, has reached the technical requirement to total gel content and curing degree of electrical machine insulation.Average thickness 0.13 ± 0.02mm mm of 10 random measurement points of mica tape that manufacture method of the present invention is made, individual values 0.13 ± 0.03mm mm, drying material unit are gross mass is 160 g/m
～180 g/m
Fig. 1 is the structural representation of single-side reinforced mica tape of the present invention, and undermost is alkali-free glass cloth 3, the superiors be mica tape 1, be bonded together by adhesive 2 between the two.
Claims (1)
1. single-side reinforced mica tape, it is characterized in that described single-side reinforced mica tape adopts following steps to produce: (a) evenly be coated with the adhesive that last layer is mixed with promoter at the upper surface that passes through the alkali-free glass cloth after coupling agent or starchiness size carry out surface treatment; (b) be that 3%～7% mica paper covers the alkali-free glass cloth upper surface that scribbles adhesive and puts into baking oven and cure with aromatic polyamide fibre content; Described curing is divided into four sections; The temperature of first paragraph is 80 ℃～100 ℃, the time of curing is 1min～3 min, the second segment oven temperature is 100～140 ℃, the time of curing is 1min～2 min, the temperature of the 3rd section baking oven is 130～150 ℃, the time of curing is 1min～2 min, and the temperature of the 4th section baking oven is 130～140 ℃, and the time of curing is 1min～2 min; (c) roll-in is carried out with the alkali-free glass cloth of mica paper in the surface that will cure after the end, obtains the single-side reinforced mica tape; Described coupling agent is wherein a kind of in silane coupler, aluminate coupling agent, the titanate coupling agent, and its consumption is the 0.2%-1.6% of alkali-free glass cloth quality; Solute in the described adhesive is organic siliconresin, and solvent is toluene, and solutes content accounts for 28% ~ 32% of adhesive gross mass; Described promoter is that mass fraction occupies any one among the K83 ﹑ PPO ﹑ BPO ﹑ DCP of machine silicones quality 1% ~ 3%; The quality of the adhesive after the interpolation promoter accounts for 4.8～11% of whole product quality; The mica paper indicated weight is 120 ± 11g/m
, thickness 0.04～0.11mm; The alkali-free glass cloth indicated weight is 20g/m
2～34g/m
2, thickness is 0.02 ~ 0.05mm.
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| CN201310281902.2A CN103350553B (en) | 2013-07-05 | 2013-07-05 | Single-side reinforcing mica tape |
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| CN201310281902.2A CN103350553B (en) | 2013-07-05 | 2013-07-05 | Single-side reinforcing mica tape |
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| CN103350553B CN103350553B (en) | 2014-12-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103824624A (en) * | 2014-01-18 | 2014-05-28 | 安徽华茜电缆科技有限公司 | Twisting-resisting flexible insulated environmental protection-type fire-resisting cable |
| CN104319029A (en) * | 2014-11-17 | 2015-01-28 | 通城县中天云母制品有限公司 | Method for manufacturing calcined type fireproof mica tape |
| CN105719781A (en) * | 2016-04-05 | 2016-06-29 | 杭州世纪云母绝缘材料有限公司 | High temperature resistant powder mica tape containing high strength fibers |
| CN109294503A (en) * | 2018-10-30 | 2019-02-01 | 永济优耐特绝缘材料有限责任公司 | A kind of low resin mica tape adhesive and its technique for applying |
| CN113690001A (en) * | 2021-08-06 | 2021-11-23 | 怀化鑫崀峰钙业有限公司 | Preparation method of mica paper tape with high thermal conductivity |
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| CN201956083U (en) * | 2011-03-02 | 2011-08-31 | 永济市海格瑞绝缘材料有限公司 | Mica tape |
| CN102398395A (en) * | 2011-07-18 | 2012-04-04 | 四川东材科技集团股份有限公司 | One-side glass cloth reinforced rich gelatine powder mica tape, manufacturing method thereof and purpose thereof |
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| JP2008021621A (en) * | 2006-07-11 | 2008-01-31 | Okabe Mica Co Ltd | High voltage-withstanding integrated mica tape |
| CN201956083U (en) * | 2011-03-02 | 2011-08-31 | 永济市海格瑞绝缘材料有限公司 | Mica tape |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824624A (en) * | 2014-01-18 | 2014-05-28 | 安徽华茜电缆科技有限公司 | Twisting-resisting flexible insulated environmental protection-type fire-resisting cable |
| CN104319029A (en) * | 2014-11-17 | 2015-01-28 | 通城县中天云母制品有限公司 | Method for manufacturing calcined type fireproof mica tape |
| CN105719781A (en) * | 2016-04-05 | 2016-06-29 | 杭州世纪云母绝缘材料有限公司 | High temperature resistant powder mica tape containing high strength fibers |
| CN109294503A (en) * | 2018-10-30 | 2019-02-01 | 永济优耐特绝缘材料有限责任公司 | A kind of low resin mica tape adhesive and its technique for applying |
| CN113690001A (en) * | 2021-08-06 | 2021-11-23 | 怀化鑫崀峰钙业有限公司 | Preparation method of mica paper tape with high thermal conductivity |
| CN113690001B (en) * | 2021-08-06 | 2023-03-03 | 怀化鑫崀峰钙业有限公司 | Preparation method of mica paper tape with high thermal conductivity |
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|---|---|
| CN103350553B (en) | 2014-12-24 |
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